Massive volume fly-ash concrete: A more sustainable material with fly ash replacing cement and aggregates

Fly ash (FA) has been widely used to improve concrete sustainability for many years; however, the amount of FA has been limited by the relatively low cement contents in concrete. In this study, massive volume fly-ash concrete was developed that maximizes the use of FA in concrete through its use as...

Full description

Saved in:
Bibliographic Details
Published in:Cement & concrete composites 2015-10, Vol.63, p.104-112
Main Authors: Rivera, Felipe, Martínez, Patricia, Castro, Javier, López, Mauricio
Format: Article
Language:English
Subjects:
Cold bonded fly ash aggregate
Electrical resistivity
Environment
High volume fly ash
Pelletization
Sustainability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fly ash (FA) has been widely used to improve concrete sustainability for many years; however, the amount of FA has been limited by the relatively low cement contents in concrete. In this study, massive volume fly-ash concrete was developed that maximizes the use of FA in concrete through its use as both a cement and aggregate replacement. Concrete containing as much as 728 kg of FA per cubic meter was produced with a compressive strength greater than 30 MPa, a low permeability measured in terms of chloride ion permeability (2300C at 56 d) and electrical resistivity (60 Ω-m at 56 d), and a decreased environmental impact.
ISSN:0958-9465
1873-393X
DOI:10.1016/j.cemconcomp.2015.08.001